Process of piecing stays.



UNITED STATES PATENT ()Fhltlhl.

BENJAMIN V. KERSHNER, OF ST. LOUIS, MlSbOUltl, ASSIGNUR TO UNION Sll-lUlAh MALlllX 1'] COMPANY, OF CHICAGO, ILLINOIS, A CORPORATIUY OF ILLINOIS,

PROCESS OF PIECING STAYS.

Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed April 30, 1908. Serial No. 430,063.

To all whom it may concern:

Be it known that I, BERJAMIX Y. Krasnxnn, a. citizen ofthe United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Processes of Piecing Stays, of which the l making stays, it has been customary to feed the two strips of leather end to end to a zig zag stitching machine, and mute the ahutted structiion, and will not need ends of the two pieces by zig zag lines of stitching. A great deal of ditliculty has, however, been experienced in uniting pieces to form stays in this manner. for the reason that the operator, unless extremely skilful, could not join the pieces so that the longitudinal edges would he in alinement, the same as if the stay had been cut from one piece of leather. The tendency of. the sewing machine was to push back one side of the seam which had the etfect of spoiling the stay, as it is imperative that the starting points of both pie es he exactly opposite, to make use of the stay after it is finished. Then again. often one piece of leather would be thicker than the other, which would raisethe presser foot so that the thin, piece of leather would not he fed forward. and again make imperfect stays.

The object of my invention is to provide a process of securing pieces of material in a predetermined p sition relative to each other, and consists'in first temporarily securing said pieces of material in the desired position, and then afterwards permanently securing said pieces.

In carrying out my invention, T have used the herein disclosed apparatus. although it is ohviousthat said process may be carried out in other 'ays, and if desired may he carried out by hand.

In the drawings, Figure 1! is a detaii view, partly in end l ation and partlyin see- .ciprocation.

tion, showing an apparatus for -arrying out my process; Fig. 2 is a top plan view, showing the securing strip passing underneath the prcsscr foot and the manner of holding the pieces on said securing strip; and Fig. 3% is a perspective view of the securing strip with one of the pieces placed thereon.

In the drawii'igs, 1 is a needle carried by a needle har which is preferably of the zig zagstitching type; that is, so mounted as it he vibrated laterally after each vertical re- 3 is a prcssor har carrying a presscr foot *1, having needle openings 5, and a keel (l. 7 is a work support, and S is a feed dog. All of these parts are of the usual cont'urther description in this conl'iection.

9 is the usual tray. which surrounds the lied plate of the se.win; machine. At the forward end of said tray l have providcl a recess in which is set a cup it). Said cup is secured in said recess by a screw 51. or by any other suitable fastentng means. .& roller 12 is pivotally secured to the cup 10. .l have novidod a guide wheel 13, which is mounted on a shaftl-l, and so located as to guide the edge of the securing strip passing through the. cup. A similar whcclmay be used for guiding the other edge of said strip. in the hottoni of said cup I have provided a'. felt support. 15. The forward side of the cup is slotted at 16 for the insertion of the securing strip 1?. sponge 18 is placed in said cup and is so located as tohea 1' upon the upper face oi" the securing strip 17. The securing strip is led from a roll mounted upon a. spindle or in any other suitable way. hcneath the machine, up through the slot to in the cup, over the felt support 15 between the rollers 13, 13. and over the roller 12, and thence ,to the feed of the sewing machine. Said securing strip 17, as shown in F and 3, is preferably a narrow strip. somewhat wider tl an the width of the zig zag seam. Said strip is provided on the upper surface with an adhesive material, and as said adhesive material passes underneath the sponge 18, which. of course, is kept moist, the same will be moistened. It will he noted, therefore, that the strip is perfectly dry as it passes in front of the machine. and for this reamn there is no danger of soiling he operators hands or clothing.

The moistcning cup is located at the front of the tray 9, and, therefore, at some little distance from the stitching point, so that as the securin strip 17 leaves the roller 1.2, some little time elapses before it reaches the stitching point. During this period of time, the operator places upon said strip the pieces of material to be stitched in the exact position it is desired to secure said pieces. v

As shown in Fig. 2, the pieces A and B are placed end to end, so that the longitu dinal edges are in alinement, and are then pressed down upon the moist adhesive mate rial, which quickly sets and tem 'iorarily secures said pieces in this position. The strip then carries the pieces forward underneath the presscr foot, and'the keel 6 engaging the meeting edges of the strips, will properly guide the same between the needles, so that said'edges will be secured permanently by the zig zag stitches 19, as shown in Fig. 2.

In view of the fact that the pieces are secured temporarily in the exact position in which they are to he stitched, it will be seen that they will be carried forward in this position to the stitching mechanisi'n. If one of the pieces should be thicker than the other, it is immaterial, for the reason that the securing strip is carried forward by the feed of the machine, and serves to carry forward the pieces which are to be stitched.

It is obvious that the pieces, if desired, may have their edges slightly overlapped, or may be arranged at any other desired position, and temporarily secured by the adhesive strip, and that they may then be fed to the stitching mechanism and secured in the ppsition in which they have been placed.

It is obvious that any other form of stitching mechanism may be used for that herein shown, without in any way departing from the spirit of my invention. In fact, the apparatus herein shown, may be varied in many ways, without in any manner chang ing my process.

By using a paper adhesive securing strip, the stays may be readily cutapart on a line coincident. with the longitudinal edges of the stay, leaving a clean cutedge, while with a cloth securing strip thetl'iread ends or whisk-- ers are liable to extend beyond the cut edge.

Having thus described my invention, what I claim as new and desire to secure by Letters l ?atcnt, is a 1. The process of uniting two pieces of fabric in a predeteri'nined position relative to each other, consisting in placing said pieces in the desired relation to each other on a strip of adhesive material, whereby they are temporarily secured, then feeding said pieces with ,the securing strip to a stitchforming mechanism, whereby the pieces may be firmly secured by stitching.

2. The process of uniting the edges of two pieces of fabric in a predetermined position relative to each other, consisting in placing the ends of said pieces in the desired relation to each other on a strip of material and temporarily seduring them thereto, then feeding said pieces with the securing strip to a stitchforming mechanism, whereby the pieces may be firmly secured by stitching.

8. The process of uniting the edges of two pieces of fabric in a predetermined position relative to each. other, consisting in placing said strips with their ends abutted, and their longitudinal edges in alinement on a strip of adhesive material, whereby they are temporarily secured, then feeding said pieces with the securing strip to a stitch-forming mechanism, whereby the pieces may be firmly secured by stitching.

4. The process of uniting the edges of two pieces of fabric in a predetermined position relative to each other, consisting in feeding a strip of adhesive material to a stitchingmechanism, molstening said strip, placing the pieces of fabric upon said strip in the desired position, whereby they are temporarily secured, and. then carried with the adhesive strip to the stitching mechanism,-

wherethey may be firmly secured by stitching.

5. The process of uniting two pieces of fabric in a predetermined position relative to each. other, consistin pieces in the desired relation to each other on a strip of adhesive material, whereby they are temporarily secured, then feeding said pieces with the securing strip to a stitchforming mechanism, whereb the pieces may be firmly secured by stitc ing, and then cutting the strip of adhesive material on a line coincident with the longitudinal edges of the pieces of fabric.

In testimony whereof I aflix my signature,

in presence of two witnesses.

BENJAMIN V. KERSHNER.

Witnesses IIENR Y LUEKING, I J T. MoLEAN.

in placing said 

